#picture{
    background-image: url(../image/0.jpg);
    width:400px;
    height:600px;
    /* 必须加前缀的属性 */
    transform:rotate(45deg);
    box-shadow: 1px 1px 0 rgba(0, 0, 0, 0.25)
}

#houzheng{
    background-color: blue
}